seoi2 sin3水線水线
Jyutpingseoi2 sin3
Yaleséui sin
Definition
Earth wire or ground wire in an electrical installation.
colloquialhometechnology
How it's used
Refers specifically to the safety wire in electrical circuits that prevents electric shock by providing a path for fault current. It is standard to pair this with 火線 and 中線 when discussing household wiring or appliance safety. The term is widely understood by laypeople in Hong Kong, especially when dealing with plug repairs or faulty appliances.
Measure word
tiu4條tìuhExamples
This appliance has no ground wire, it's very dangerous to use.
Related words
Common mistake
Do not confuse this with the term for a water line or water pipe, which is also written as 水線 in some contexts; context usually makes it clear whether you are talking about electricity or plumbing.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- Directional complementsThe small words added after a verb to show direction of movement, like up, down, out, in, and back. Common in everyday Cantonese.
- DemonstrativesThis and that with 呢 and 嗰, the personal pronouns, and how 哋 turns I, you, and he into we, you all, and they.
- Resultative complementsSticking a result word onto a verb to show how it turned out, like eat until full or look and find. A productive everyday pattern.
